Before You Build a Side Project, Try to Sell It First
The biggest reason side projects stall isn't lack of time to build -- it's building something nobody had actually agreed to want.
The instinct with a side project is to build first and find customers after -- a website, a product, a polished version of the idea -- then go looking for someone to pay for it. The lean-startup research that reshaped how startups get built, Eric Ries's "The Lean Startup" and more directly Rob Fitzpatrick's "The Mom Test," argues for reversing that order: find out whether anyone will actually pay before you spend the time building, because the expensive mistake isn't a bad website, it's months spent on something the market was never going to want.
In practice, that means naming the one specific problem you're solving in a sentence a stranger would immediately recognize, then testing it on strangers, not friends -- friends are polite and will tell you your idea is good regardless. The real test isn't "do you like this idea," which invites a comfortable yes; it's "would you pay for this today, at this price," which is where most ideas that sounded promising in conversation quietly fall apart. Getting that answer from a handful of real prospective buyers before writing a line of code or a page of copy is a cheap way to find out you're wrong, instead of an expensive one.
This is also just a durable, transferable skill in its own right -- the ability to identify a real problem, validate demand for solving it, and price it holds up regardless of which specific side project or freelance gig you're testing it on. If you're not sure where to start, working a few real freelance projects, ones with an actual client and a real deliverable, is a lower-risk way to build that same validation instinct than launching a product cold.
Drawing on Eric Ries's "The Lean Startup" and Rob Fitzpatrick's "The Mom Test" on customer validation before building.
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